Abstract
Several authors have studied projective and injective classes of abelian groups in various settings. A projective (respectively, injective) class of groups is the class of all groups projective (respectively, injective) with respect to some given class of exact sequences.
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References
D. Arnold, Finite Rank Torsion Free Abelian Groups and Rings, Lect. Notes in Math. 831 (1982), Springer-Verlag.
D. Arnold and C. Vinsonhaler, Pure subgroups of finite rank completely decomposable groups II, to appear in these Proceedings.
R.B. Warfield Jr., Homomorphisms and duality for torsion free groups, Math. Z. 107 (1968), 189–200.
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© 1983 Springer-Verlag Berlin Heidelberg
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Vinsonhaler, C.I., Wickless, W.J. (1983). Projective and Injective Classes of Completely Decomposable Groups. In: Göbel, R., Lady, L., Mader, A. (eds) Abelian Group Theory. Lecture Notes in Mathematics, vol 1006. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-21560-9_4
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DOI: https://doi.org/10.1007/978-3-662-21560-9_4
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